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Sonsivri > Electronics > AVR, 8051 Family and ARM Area (Moderator: bbarney) > Req: Cracking preprogrammed 8051 chip with fuse locked
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mhemara
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TroubleMaker...!i
« on: April 21, 2008, 11:46:34 23:46 »
Anyone has successfully cracked a preprogrammed 8051 chip with fuse locked?
I want to retrieve the binary image from a programmed 8051 micro
any ideas?
Thanx
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Kabron
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« Reply #1 on: April 24, 2008, 02:04:28 14:04 »
Forget about
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sohel
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« Reply #2 on: April 24, 2008, 02:27:03 14:27 »
Quote from: mhemara on April 21, 2008, 11:46:34 23:46
Anyone has successfully cracked a preprogrammed 8051 chip with fuse locked?
I want to retrieve the binary image from a programmed 8051 micro
any ideas?
Thanx



i think sonsivri didnt get any member for ur topics. best way to write ur programm your self.
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microkid
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« Reply #3 on: April 24, 2008, 05:12:54 17:12 »
well said Kabron & sohel

MicroKid
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picavr
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« Reply #4 on: April 27, 2008, 07:24:28 19:24 »
there is a firms in hong kong and china and you can find  some adress in the web,the methode is the injection of laser phisicaly on the zone that contain a fuse lock.
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ashu.spect
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« Reply #5 on: April 28, 2008, 05:27:04 05:27 »
so i guess rather than cutting a chip with a dam lazer in some firm in honkong or china, writting a new code is much cheaper don't u think?Huh

Ashu
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sacoroxo
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« Reply #6 on: April 29, 2008, 12:27:35 12:27 »
Yes I have a good idea, write it by youself !!!
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picavr
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« Reply #7 on: April 29, 2008, 04:49:32 16:49 »
yes ,but every one can know about cracking a mcu physically,and when you can make a programm in mcu ,it s not protected 100%
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